The Air Force Personnel Center will try very hard to work what is called a Join-Spose (or Joint-Spouse) assignment for you. Depending on what career fields you choose (or are assigned), you may end up going to different tech schools. If you do go to different tech schools and one graduates before the other, then the one who graduates first will be given their assignment first. Once you know that, then the other one may send that info to AFPC and they will try to assign the second one of you to that same base. While you're at tech school, your instructors will bring in reps from AFPC to talk you through all of this so that would be the perfect time to ask them all these questions.
Some career fields are very limited in the bases where they can be assigned (particularly if they're specialized). If both of you have these careers, then it makes AFPC's job harder to match you to the same base. Sometimes, they may not be able to get you to the same base, in which case you will be stationed at different bases. This does happen sometimes, but AFPC does a really good job of making sure husbands and wives get to stay together.
